Mark 14:68
But he denied, saying, I know not, nor understand what thou say. And he went outside onto the porch, and a cock sounded.
Matthew 26:71-72
And when he was gone out into the porch, another woman saw him, and says to them there, This man was also with Jesus the Nazarene.
Mark 14:29-31
But Peter said to him, Even if all will be caused to stumble, yet not I.
Mark 14:72
And the second time a cock sounded. And Peter remembered the saying that Jesus said to him, Before a cock sounds twice, thou will deny me thrice. And having broke down, he wept.
John 13:36-38
Simon Peter says to him, Lord, where do thou go? Jesus answered him, Where I go, thou cannot follow me now, but thou will follow me afterwards.
2 Timothy 2:12-13
If we endure, we will also reign together. If we renounce him, that man will also renounce us.